Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10384700 | Method of indicating a railway switch status | Donald Coy Beaman | 2019-08-20 |
| 9586603 | Railway dark territory switch automation | Donald Coy Beaman | 2017-03-07 |
| 8857770 | Railway dark territory switch automation | Donald Coy Beamon | 2014-10-14 |